A kind of preparation method of high surface roughness cold-rolled titanium coil

Abstract

A method for preparing cold-rolled titanium coils with high surface roughness. First, the raw titanium coils are rolled on a cold rolling mill through cold-rolled work rolls, and the raw titanium coils are rolled to a target thickness, and a thickness margin is reserved. Degreasing and bell-type annealing are carried out on the raw titanium coils after rolling to obtain titanium coils before texturing; then texturing and rolling are carried out on the titanium coils before texturing by laser texturing rollers on the cold rolling mill, and the unit of texturing rolling Tension control is 2.5kg / mm 2 ~10.5kg / mm 2 , and add emulsion in the texture rolling process, control the rolling force and emulsion flow rate according to the yield strength of the titanium coil, and roll the titanium coil before texturing to the target thickness through 1~3 rolling passes, and get For texturized titanium coils, the laser texturized rolls used are the texturized rolls obtained by laser random texturing of cold-rolled work rolls; degreasing the texturized titanium coils to obtain a surface roughness of 1~ The 3μm cold-rolled titanium coil can directly obtain high surface roughness cold-rolled titanium coil when rolling titanium coil, which can meet the actual production requirements.

Description

technical field

[0001] The invention relates to the field of preparation of cold-rolled titanium coils, in particular to a method for preparing cold-rolled titanium coils with high surface roughness. Background technique

[0002] The elastic modulus of titanium metal is low, and the degree of work hardening is high, which makes the springback of titanium coil stronger after rolling, and the cold rolling process is more difficult. Roll surface friction is also greater. In order to reduce rolling force and friction, low-roughness cold-rolled work rolls are generally used for rolling. The surface roughness of cold-rolled work rolls is generally less than or equal to 0.3 μm, and the surface roughness of titanium coils after rolling is generally less than or equal to 0.6 μm, however, in some special fields, such as some special battery plates and some stamping plates that require high surface lubrication, it is necessary to use cold-rolled titanium plates with high surface rough...

Examples

preparation example Construction

[0018] A method for preparing cold-rolled titanium coils with high surface roughness, used for producing cold-rolled titanium coils with a thickness of 0.4-3.0 mm and a surface roughness of 1-3 μm, comprising the following steps:

[0019] Step 1. Preparation before coil texturing

[0020] The raw titanium coils are rolled by cold rolling work rolls on the cold rolling mill, and the raw titanium coils are rolled to the target thickness, and a thickness margin of 0.005~0.03mm is reserved, and the raw material titanium coils after rolling are degreased. and bell annealing to obtain titanium rolls before texturing; when the target thickness is 0.4~1.5mm, reserve a thickness margin of 0.005~0.01mm; when the target thickness is 1.5~3.0mm, reserve a thickness margin of 0.01~0.03mm Thickness allowance.

[0021] Step 2. Coil texture rolling

[0022] On the cold rolling mill, the pre-textured titanium coil obtained in step 1 is texturized and rolled by laser texturing rollers, and the...

example 1

[0028] 1) The roughness of the laser textured roller used is 12 μm, and the Rpc value is 65;

[0029] 2) TA1 titanium coil is degreased and bell annealed after being cold-rolled to 1.01mm with cold-rolled work rolls;

[0030] 3) Replace the cold-rolled work roll with a laser textured roll, pressing and grinding the roll for 1 min;

[0031] 4) Texture rolling is carried out on the titanium strip, the rolling force is 500 tons, the flow rate of the emulsion is 1000L / min, and the reduction is 0.005mm; texturing is done in 1 pass;

[0032] 5) After the degreasing treatment, a high surface roughness cold-rolled titanium coil with a roughness of 2.7 μm is obtained.

example 2

[0034] 1) The roughness of the laser textured roller used is 10 μm, and the Rpc value is 70;

[0035] 2) TA2 titanium coils are cold-rolled to 0.4mm with cold-rolled work rolls, then degreased and bell-type annealed;

[0036] 3) Replace the cold-rolled work roll with a laser textured roll, pressing and grinding the roll for 1 min;

[0037] 4) Texture rolling is carried out on the titanium strip, the rolling force is 800 tons, the flow rate of the emulsion is 2000L / min, and the reduction is 0.01mm; 1 pass of texturing;

[0038] 5) After the degreasing treatment, a high surface roughness cold-rolled titanium coil with a roughness of 2.5 μm is obtained.

technical field

[0001] The invention relates to the field of preparation of cold-rolled titanium coils, in particular to a method for preparing cold-rolled titanium coils with high surface roughness. Background technique

[0002] The elastic modulus of titanium metal is low, and the degree of work hardening is high, which makes the springback of titanium coil stronger after rolling, and the cold rolling process is more difficult. Roll surface friction is also greater. In order to reduce rolling force and friction, low-roughness cold-rolled work rolls are generally used for rolling. The surface roughness of cold-rolled work rolls is generally less than or equal to 0.3 μm, and the surface roughness of titanium coils after rolling is generally less than or equal to 0.6 μm, however, in some special fields, such as some special battery plates and some stamping plates that require high surface lubrication, it is necessary to use cold-rolled titanium plates with high surface rough...

Examples

preparation example Construction

[0018] A method for preparing cold-rolled titanium coils with high surface roughness, used for producing cold-rolled titanium coils with a thickness of 0.4-3.0 mm and a surface roughness of 1-3 μm, comprising the following steps:

[0019] Step 1. Preparation before coil texturing

[0020] The raw titanium coils are rolled by cold rolling work rolls on the cold rolling mill, and the raw titanium coils are rolled to the target thickness, and a thickness margin of 0.005~0.03mm is reserved, and the raw material titanium coils after rolling are degreased. and bell annealing to obtain titanium rolls before texturing; when the target thickness is 0.4~1.5mm, reserve a thickness margin of 0.005~0.01mm; when the target thickness is 1.5~3.0mm, reserve a thickness margin of 0.01~0.03mm Thickness allowance.

[0021] Step 2. Coil texture rolling

[0022] On the cold rolling mill, the pre-textured titanium coil obtained in step 1 is texturized and rolled by laser texturing rollers, and the...

example 1

[0028] 1) The roughness of the laser textured roller used is 12 μm, and the Rpc value is 65;

[0029] 2) TA1 titanium coil is degreased and bell annealed after being cold-rolled to 1.01mm with cold-rolled work rolls;

[0030] 3) Replace the cold-rolled work roll with a laser textured roll, pressing and grinding the roll for 1 min;

[0031] 4) Texture rolling is carried out on the titanium strip, the rolling force is 500 tons, the flow rate of the emulsion is 1000L / min, and the reduction is 0.005mm; texturing is done in 1 pass;

[0032] 5) After the degreasing treatment, a high surface roughness cold-rolled titanium coil with a roughness of 2.7 μm is obtained.

example 2

[0034] 1) The roughness of the laser textured roller used is 10 μm, and the Rpc value is 70;

[0035] 2) TA2 titanium coils are cold-rolled to 0.4mm with cold-rolled work rolls, then degreased and bell-type annealed;

[0036] 3) Replace the cold-rolled work roll with a laser textured roll, pressing and grinding the roll for 1 min;

[0037] 4) Texture rolling is carried out on the titanium strip, the rolling force is 800 tons, the flow rate of the emulsion is 2000L / min, and the reduction is 0.01mm; 1 pass of texturing;

[0038] 5) After the degreasing treatment, a high surface roughness cold-rolled titanium coil with a roughness of 2.5 μm is obtained.